Dimitra Kavarnou University of Reading dkavarnou pgr readingacuk Supervised by Dr Anupam Nanda Prof Sotiris Tsolacos Idea This research examines the impact of local public amenities on house prices in the islands of Greece ID: 776263
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Slide1
A Hedonic Model of House Prices in the Greek Islands
Dimitra KavarnouUniversity of Readingd.kavarnou@pgr.reading.ac.ukSupervised by: Dr. Anupam NandaProf. Sotiris Tsolacos
Slide2Idea
This research examines the impact of local public amenities on house prices in the islands of Greece
By taking the Greek islands as the case study, we are trying to identify the significance and the influence on the house prices (assessed values) of several public amenities for 36 Greek Islands
The model also controls for several structural and locational characteristics of the properties as well as economic and demographic attributes of the islands
Slide3It is an application of Hedonic Modeling on housing by controlling the public amenities (port, airport, hospital, university) and tries to identify the significance of their:presence time distances from the house propertiesOn the housing prices of the islands It has never been contacted before a research on the housing market of the Greek Islands It tries to explain variables and factors that the evaluators are influenced by in terms of amenities but they are not aware (not included into their criteria/list)
Why this Research - Aim
Slide4Why this geographical area
The islands of Greece constitute a unique area on the planet as they are hundreds pieces of land in the sea
belonging
in the same nation (laws, policies,
tradition, culture, economy, etc.) but with lots of different characteristics
Isolated – difficult to approach areas
Very heterogeneous market – housing submarkets (tourism rates, employment
)
Why these 36 islands out of
hundreds
Criteria:
Permanent population 1,000 people/island (resent census 2011)
Minimum number of observations 15-20p. To each island
Excluded the 2 biggest islands of Greece (Crete and Evvoia – separate research)
Slide5Where?
Greece
Slide6Where?
Ionian Islands
Sporades Islands
Argo Saronic Islands
Cyclades Islands
North East Aegean Sea Islands
Dodecanese Islands
Slide71. Ionian Islands
Groups & Islands - I
Ionian Islands
Population (2011)
Geographical Size (km2)
1
Corfu
101,080
592
2
Ithaki
3,180
96
3
Kefallonia
35,590
781
4
Lefkada*
22,710
325
5
Zante
40,650
406
Total
203,210
2,200
Slide8Groups & Islands - II
2. Sporades Islands
Sporades Islands
Population (2011)
Geographical Size (km2)
6
Alonnisos
2,800
64.5
7
Skiathos
6,110
48
8
Skopelos
4,830
95.5
9
Skyros
2,960
209.5
Total
16,700
417.5
Slide9Groups & Islands - III
3. Argo Saronic Islands
Argo Saronic Islands
Population (2011)
Geographical Size (km2)
10
Salamina
39,220
95
11
Spetses
4,070
22
12
Ydra
1,980
50
Total
45,270
167
Slide10Groups & Islands - IV
4. Cyclades Islands
Cyclades Islands Population (2011)Geographical Size (km2) 13Andros9,170379.70 14Amorgos1,940121.46 15Kea2,420131.69 16Kythnos1,31096.90 17Milos4,960150.60 18Mykonos10,19086.13 19Naxos19,440429.00 20Paros13,710196.31 21Syros21,39084.07 22Thira/Santorini15,25076.91 23Tinos8,590194.59Total 108,3701,947.36
Slide11Groups & Islands - V
5. North East Aegean Sea Islands
North East Aegean Sea islands
Population (2011)
Geographical Size (km2)
24
Chios
51,320
842
25
Ikaria
8,410
255
26
Lesvos
85,330
1,636
27
Limnos
17,000
476
28
Samos
32,760
476
Total
194,820
3,685
Slide12Groups & Islands - VI
6. Dodecanese Islands
Dodecanese Islands
Population (2011)
Geographical Size (km2)
29
Astypalaia
1,310
96.90
30
Kalymnos
16,140
110.58
31
Karpathos
6,160
300.15
32
Kos
33,300
290.30
33
Leros
8,130
54.05
34
Patmos
3,040
34.14
35
Rhodes
115,290
1,400.68
36
Symi
2,580
57.87
Total
185,950
2,345
Slide13Literature Review - I
Housing Market Attributes in General:
The heterogeneity of a housing market
(the
differentiation of the locations, the
islands, the amenities, the tourism rates,
the
employment,
etc
.)
T
he
external effects
in a housing market
(the several characteristics that are observed but not fully controlled or measured)
The immovability of the housing market
(that increases the demand for amenities)
T
he
durability of a market
(by examining the course of a housing market in the long run)
T
he
political
economy
(the
bundle of regulations, policies and
taxes)
T
he
imperfect information about a market
(that
lead to hidden
defects)
T
he transaction
costs
(that
lead to lagged market adjustments and to the intermediaries’
presence)
(
Kain
and Quigley, 1975;
Xu
, 2008)
Slide14Literature Review - II
The Need for Public Amenities and their significances in every housing market
Globally
For difficult to approach areas (such as the islands) – the significance of fast commuting
Transportation (Ports/ Airports)
Hospital Social Care (Prefectural General Hospitals)
Higher Education (Universities)
(Schools are not in the scope of this research by making the assumptions that: a) all islands have public schools of all levels, b) private schools are not taken into consideration, c) no family would commute/ migrate from an island for better school provision)
(Wu et al.; 2013,
Wenjie
et al.; 2010, Davies and Robb;1998,
Royle
, 1995, Webster; 2001,
Prideaux
; 2000,
Carvalho
et al.; 2010
)
The Community Structure of the hundreds of islands
(trade, defence, architectural rules, etc.)
(
Dimitropoulos
; 2001)
Slide15Methodology - I
Hedonic Regression Method (The method that decomposes the dependant variable under the scope into its constituent characteristics, and obtains assessments of the contributory value of each specific characteristic)(Rosen; 1974, Roback;1982, Bajari and Benkard; 2005) In this research, the dependant variable (Y) is the Assessed Housing Prices - AHP or P for every property (i) , island(j), group of island(k) Pi,j,k = α + ∑β Xi,j,k + εi,j,k In order to mitigate the problem of heteroskedasticity as well as to compare percentage-wise the effect on the Assessed Housing Prices(1) log(Pi,j,k)= α + ∑β Xi,j,k + εi,j,k
Υ
i
=
α + β
1
Χ
1
+ β
2
Χ
2
+
…+
β
i
X
i
+
ε
i
Slide16Methodology - II
But
Τ
here are also
island characteristics
for each island (j):
(2)
log(P
i,j,k
) =
α + ∑β
X
i,j,k
+ ∑
γ
Z
j,k
+ ε
i,j,k
Controlling the
Fixed Effects
for each island:
(3)
log(P
i,j,k
) =
α + ∑β
X
i,j,k
+
δ
j
+ ε
i,j,k
(Boundary fixed effects model: Black;1999, Clapp, Nanda and Ross; 2008)
where
δ
is the total unobserved effects for each island (j) - dummies
Τ
here are also
group of
islands characteristics -
Controlling the
Fixed Effects
of each
group of islands (k):
(4)
log(P
i,j,k
) =
α + ∑β
X
i,j,k
+ ∑
γ
Z
j,k
+
Δ
k
+
ε
i,j,k
where
Δ
is the total unobserved effects for each group of islands (k) - dummies
Slide17Data - I
Two files from the Bank of Greece including properties in the islands that have been evaluated from 2005-2013 with property characteristics:The property characteristics (Xi,j,k) included are:Some details about the property location (not exact)The living space (m2)The land area (m2)The date/year of permit, completion, evaluationThe property type (flat/detached house/ maisonette) and the floorSome information about the construction quality, the neighbourhood, the view (limited) Some information about the store rooms and the parking spaces
file 1
11,553
file 2
3,384
Total
14,937 pr.
Slide18Data - II
Limitations of the dataset
Not exact location (address/number, to many cases only local toponyms of settlements)
Either because of incomplete dataset
But
Mainly because the properties in the Islands do
not
have an address themselves but they refer to the closest village/settlement
With this very limited information about their location, it was
VERY
difficult
and time-consuming to spot the properties and calculate their distances from the amenities (ports/airports)
Lots of missing/ incomplete values from the evaluators (view, land, year of completion/permit)
Slide19Data - III
Data Set Cleaning:Out of the 14,937 properties I received, I excluded:3,620 properties in Evvoia and Crete (separate analysis – research) 850 approx. duplications 500 approx. did not concern properties on islands (incorrect entries)3,000 approx. to which the land area was not available 300 approx. to which the year of completion or the year of permit was not available (not able to calculate the age of the property) 300 approx. concerned islands with population<1,000p. or islands with insufficient number of observations/island (<15) 6,350 properties approx. in 36 islands to be spotted and calculated2,000 properties approx. not able to spot/ find the approx. location of the closer village in Google Earth/ Google maps 4, 369 properties spotted in the final dataset
Slide20Data - IV
Spotting the properties in Google Earth (approximately)
Slide21Data - V
Slide22Data - VI
Calculating time distances in Google mapsto port: to airport:
Slide23Data - VI
The
population
data come from the
Publication of provisional results of the 2011 Population
Census (Source: Hellenic Statistic Authority)
The following data – island characteristic variables
(Z
j,k
)
where collected by a travel agency (Express Holidays):
Sea Transportation:
The travel
duration
from each island to the
capital
(
slow
and
fast
boat – in minutes)
The
travel
duration
from
each island to the
closest
mainland
(
slow
and
fast
boat- in minutes)
The cost of travel
from each island to the
capital
(
slow
and
fast
boat – in
€)
The frequency of travel to
capital
(
slow
and
fast
boat,
summer
and
winter
– in travels/week)
Air Transportation
:
The
duration
of the flight from
each island to the
capital airport (Athens)
The
cost
of flight
from each island to the
capital airport
(average)
The
frequency
of
flights to
capital
(
summer
and
winter
– in travels/week)
Slide24Data Analysis - I
Time Agenda
Data Cleaning1mSpotting properties in Google Earth6m Calculating distances in Google Maps2m Modelling - Data Analysis1m+… …
Extracting all the useless entriesGoogle Earth due to lack of information of the property location I couldn’t use GIS as well asGoogle maps cause it is the only one calculating the time distances* I couldn’t use GISE-Views for every island separatelyStata for the big model of all islands …to be continued…
*For the islands it is meaningless to calculate the
km
distances since:
They are not comparable from island to island (different ground morphology, traffic, road conditions, etc.)
They are relatively small
After locating the properties, I created 2 new property characteristic variables (X
i,j,k
) which are the:
a)
Time distance to the port
b)
Time distance to the airport
Slide25Data Analysis - II
Property Utilisation Ratio:Age:If the year of completion is available then:If the year of completion is not available then:**2 is the average duration of construction for housing properties in Greece (Source: BoG)Age ≥ 0 (the properties that were evaluated prior to their completion, i.e. age<0, their age is considered as 0)
Data Analysis - III
Deflation of Assessed Housing PricesThe Prices are deflated and expressed in December 2012 prices:where:HICPDec2012= 123.28HICPt = the HICP of the month year of the evaluation(Source of the HICP tables: Hellenic Statistic Authority)Dummy Variables Xi,j,k for the property types:FlatDetached HouseMaisonette
Data Analysis - IV
Dummy Variables (Z
j,k
) for controlling:
The Presence of Airport on the island
The Presence of Prefectural General Hospital on the island
The Presence of University on the
island
Dummy
Variables (
δ
j
)
for the fixed effects - controlling the unobserved heterogeneity of the islands
(one dummy for each island)
Dummy
Variables
(
Δ
k
)
for the fixed effects - controlling the unobserved heterogeneity of
the groups of
islands
(one dummy for each
group)
Slide28RESULTS - I
IONIAN ISLANDS Dependent Variable: LOG(REAL_ASSESSED_VALUES) Variables (Xi,j,k) / ISLANDCORFUKEFALLONIAZANTELEFKADAITHAKIC8.264*** (41.53)8.859***(28.56)8.125***(22.28)7.859***(16.02)7.518***(11.68)LOG(LIVING_SPACE)0.793*** (15.94)0.652***(8.45)0.683***(9.56)0.754***(9.20)0.723***(4.25)LOG(LAND)0.090***(3.10)0.108***(3.43)0.137***(3.04)0.149**(2.41)0.274**(2.39)PUR-1.84E-05(-0.02)3.46E-05*(1.67)0.001(1.42)0.003**(2.01)0.005(1.60)FLOOR0.0001(0.03)0.046*(1.74)-0.003(-0.09)-0.053(-1.09)-0.014(-0.21)T2-0.184***(-4.19)-0.330***(-4.87)-0.122(-1.55)-0.022(-0.21)-0.587***(-4.55)T3-0.200**(-2.19)0.007(0.10)0.032(0.21)-0.061(-0.62)-AGE-0.003**(-2.55)-0.007***(-4.07)-0.003(-1.53)-0.010**(-2.49)-0.001(-0.28)TIME_DISTANCE_TO_PORT-0.015***(-3.93)-0.007**(-2.37)0.002(0.11)-0.002(-0.43)0.011(1.34)TIME_DISTANCE_TO_AIRPORT0.007*(1.75)0.000(0.09)-0.004(-0.31)--R20.700.580.510.750.58Adj. R20.690.560.490.730.54No of Observations3572362049385
Slide29RESULTS - II
SPORADES ISLANDSDependent Variable: LOG(REAL_ASSESSED_VALUES)Variables (Xi,j,k) / ISLANDSKIATHOSALONNISOSSKOPELOSSKYROSC8.746***(7.34)9.718***(14.80)8.426***(15.06)9.527***(8.49)LOG(LIVING_SPACE)0.685***(3.10)0.567***(4.01)0.616***(5.87)0.617***(3.72)LOG(LAND)-0.007(-0.06)0.030(0.476)0.118*(1.94)0.035(0.37)PUR0.001(0.43)-0.003(0.002)0.001(0.53)-0.002(-0.76)FLOOR0.052(0.089)0.153(0.19)0.057(0.90)0.126(1.10)T2-0.347*(-1.89)-0.177(-1.54)0.142(1.349)-0.346**(-2.16)T3---0.618***(-4.08)0.019(0.09)AGE-0.008(-1.47)-9.04E-05(-0.02)-0.005**(-2.06)-0.006(-1.20)TIME_DISTANCE_TO_PORT-0.234*(-2.09)0.006(0.39)0.004(0.83)0.005(0.24)TIME_DISTANCE_TO_AIRPORT0.275**(2.25)---0.007(-0.29)R20.710.600.690.42Adj. R20.510.540.660.35No of Observations21 (n<30)498478
Slide30RESULTS - III
ARGO SARONIC ISLANDSDependent Variable: LOG(REAL_ASSESSED_VALUES)Variables (Xi,j,k) / ISLANDYDRASPETSESSALAMINAC6.859***(4.28)8.477***(12.79)8.560***(26.64)LOG(LIVING_SPACE)-0.597(-0.70)0.741***(7.75)0.586***(5.49)LOG(LAND)1.469(1.63)0.153(1.50)0.213***(3.10)PUR0.015(1.23)0.001(0.26)0.002(1.35)FLOOR0.089(0.31)0.234*(1.87)0.052(1.42)T2-0.019(-0.065)-0.130(-1.24)-0.139**(-2.25)T3---0.312**(-2.46)AGE-0.009***(-3.16)-0.001(-0.58)-0.010***(-4.87)TIME_DISTANCE_TO_PORT0.026(0.37)-0.027(-0.42)-0.023***(-3.16)TIME_DISTANCE_TO_AIRPORT---R20.670.540.60Adj. R20.500.490.59No of Observations21 (n<30)83251
Slide31RESULTS - IV
NORTH EAST AEGEAN ISLANDS Dependent Variable: LOG(REAL_ASSESSED_VALUES) Variables (Xi,j,k) / ISLANDLESVOSSAMOSLIMNOSCHIOSIKARIAC8.739***(22.61)8.260***(29.60)8.318***(19.93)8.332***(23.56)7.973***(6.72)LOG(LIVING_SPACE)0.662***(7.84)0.924***(12.46)0.694***(6.73)0.833***(8.49)0.427(1.27)LOG(LAND)0.119***(2.91)0.004(0.09)0.156**(2.51)0.024(0.31)0.198(1.48)PUR-0.000(-0.48)-0.003***(-2.72)-0.001(-0.40)-0.001(-0.49)0.011**(2.90)FLOOR-0.006(-0.26)0.010(0.52)-0.045(-1.48)-0.034*(-1.74)0.037(0.47)T2-0.304***(-4.88)-0.224***(-3.57)-0.184**(-2.26)-0.073(-1.43)0.363(0.90)T30.178**(2.51)0.126(0.97)-0.446***(5.86)-AGE-0.006***(-4.97)-0.007***(-4.94)-0.006***(-3.31)-0.007***(-5.41)0.004(0.70)TIME_DISTANCE_TO_PORT0.003(0.28)-0.003(-0.99)-0.005(-1.59)-0.005**(-1.99)-0.010(-0.55)TIME_DISTANCE_TO_AIRPORT-0.005(-0.46)-0.003(-1.32)5.60E-05(0.01)-0.001(-0.22)0.001(0.33)R20.560.730.710.680.77Adj. R20.550.720.680.670.60No of Observations3472137026420 (n<30)
Slide32RESULTS - V
CYCLADES ISLANDS Dependent Variable: LOG(REAL_ASSESSED_VALUES) Variables (Xi,j,k) / ISLANDNAXOSSYROSTINOSTHIRAPAROSMILOSKEAKYTHNOSMYKONOSAMORGOSANDROSC8.38***(19.60)7.815***(20.26)8.72***(12.03)8.894***(12.12)7.622***(11.07)9.329***(16.40)8.730***(14.83)11.276***(10.50)9.038***(17.96)8.732***(17.02)9.742***(24.26)LOG(LIVING_SPACE)0.918***(8.02)0.720***(6.52)0.597***(4.93)0.658***(2.75)1.026***(8.65)0.529***(5.69)0.938***(7.25)0.009(0.04)0.828***(11.17)0.710***(5.90)0.643***(5.69)LOG(LAND)0.178(0.26)0.221***(2.97)0.156*(1.94)0.088(0.54)-0.200(-0.22)0.169**(2.02)-0.079(-0.97)0.18(1.69)0.042(0.80)0.059(0.89)0.029(0.62)PUR-0.002(-1.15)0.002(1.27)0.004(1.31)0.002(0.42)-0.003(-1.03)0.002(0.91)-0.003(-0.90)0.004(1.43)0.001(0.60)-0.003(-1.41)-0.001(-0.92)FLOOR0.059(1.33)-0.019(-1.16)-0.029(-0.88)0.012(0.16)0.049(0.53)0.033(1.10)0.053(0.60)-0.33**(-2.65)0.104(1.09)0.054(0.56)0.079**(2.12)T2-0.402***(-4.00)-0.192**(-2.34)-0.093(-0.82)-0.027(-0.24)-0.237**(-2.09)-0.002(-0.02)0.224(1.33)-0.162(-1.00)0.017(0.15)0.101(0.87)-0.42***(-5.54)T30.009(0.05)0.304**(1.99)-0.487***(-3.09)0.001(0.01)0.492(2.21)0.401***(3.20)0.136(0.59)-0.287(1.36)--0.654***(-7.91)AGE-0.008***(-3.93)-0.003(-1.50)-0.015***(-4.42)-0.010**(-2.41)-0.003(-1.06)-0.005**(-2.08)-0.007***(-3.13)-0.008**(-2.31)-0.008***(-4.02)-0.001(-0.65)-0.008***(-4.03)TIME_DISTANCE_TO_PORT0.024(1.39)-0.0004(-0.05)-0.004(-0.77)0.001(0.08)0.029***(2.83)0.048**(2.30)-0.002(-0.52)-0.016(-1.16)0.001(0.04)-0.004(-0.55)-0.0002(-0.11)TIME_DISTANCE_TO_AIRPORT-0.019(-1.27)-0.007(-0.64)-0.001(0.08)-0.003(-0.45)-0.705***(-3.50)---0.010(-0.76)--R20.650.680.700.580.770.660.690.770.700.680.51Adj. R20.610.660.670.510.730.620.660.540.690.600.48No of Observations79132786867778515 (n<30)15837166
Slide33RESULTS - VI
DODECANESE ISLANDS Dependent Variable: LOG(REAL_ASSESSED_VALUES) Variables (Xi,j,k) / ISLANDRHODESPATMOSKOSKALYMNOSSYMIASTYPALAIAKARPATHOSLEROSC8.282***(26.92)8.050***(21.27)6.702***(24.18)7.671***(17.08)9.249***(8.04)9.253***(6.39)8.008***(36.71)7.927***(16.72)LOG(LIVING_SPACE)0.729***9.36)0.639***(7.10)0.915***(12.41)0.842***(7.427)1.056**(2.57)0.591*(2.01)0.939***(8.51)0.734***(13.06)LOG(LAND)0.121***(2.60)0.218***(4.00)0.167***(3.82)0.069(1.12)-0.281(0.63)0.149(0.67)-0.021(-0.34)0.181***(3.52)PUR0.001(1.18)0.004**(2.58)0.001(1.11)-0.0002(-0.15)0.001(-0.20)-0.001(-0.34)-0.0004(-0.47)0.002(1.65)FLOOR-0.008(-0.31)-0.077(-1.31)0.021(0.77)-0.008(-0.47)-0.140(-0.54)0.379(1.04)-0.031(-0.94)-0.082*(-1.80)T2-0.037(-0.73)-0.241***(-2.72)-0.145(-1.58)-0.081(-0.84)-0.084(-0.50)0.078(0.29)-0.038(-0.29)-0.10(-1.45)T30.031(0.36)-0.845***(8.52)-0.869**(-2.47)-0.021(-0.11)---AGE-0.008***(-5.73)-0.002(-1.21)-0.006***(-3.72)-0.004**(-2.34)-0.003(-0.83)-0.002(-0.37)-0.013***(-3.14)-0.002(-0.90)TIME_DISTANCE_TO_PORT-0.008***(-4.48)0.008(0.80)0.002(0.73)-0.009(-1.18)-0.004(-0.34)-0.054(-1.26)0.006(1.25)-0.019(-1.43)TIME_DISTANCE_TO_AIRPORT0.005***(3.28)-0.008**(2.36)0.017**(2.02)--0.038(-1.23)--0.013(-0.89)R20.650.720.820.680.600.800.910.83Adj. R20.640.690.800.650.470.710.870.81No of Observations503831571043425 (n<30)26 (n<30)56
Slide34RESULTS - VII
For all islands the living space is positively very significant to the prices (1% significance level) 1% increase in living space 0.52-1.06% increase to the prices ( 0.74% increase - weighted average)For some of the islands the land space is positively significant (1% or 5%)(For 16/36 islands including all Ionian Islands, Skopelos-Sporades, Salamina-Argo Saronic, Lesvos and Limnos-NE Aegean, Syros, Tinos and Milos-Cyclades, Rhodes, Patmos, Kos and Leros-Dodecanese Islands)1% increase in the land area 0.09-0.27% increase to the prices (0.15% increase - weighted average)The Property Utilisation Ratio is relatively not significant for most of the islands (gardens/yards not significant)The floor number is relatively not significant for most of the islands
Slide35RESULTS - VIII
The
property type (flats/detached houses/
maisonettes
)
seems to be very significant for most of the islands
D
etached houses
to 14/36 islands
negatively
very significant (1-5%)
compared
to
flats
i.e.
The flats are
more
expensive
compared to detached houses – probably because flats are located to the islands’ capitals the
proximity to the capital
is very important for these islands
Mainsonettes
to 7/23 islands
negatively
very significant (1-5%)
compared to flats
i.e.
The flats are
more expensive
compared to
maisonettes
– probably because they are located to the islands’ capitals and
the proximity to the capital
is very important for these 7 islands
Mainsonettes
to 5/23 islands
positively
very significant (1-5%)
compared to flats
i.e.
The flats are
less expensive
compared to
maisonettes
– probably because of their construction/ property characteristics/ extra facilities/ landscape
Slide36RESULTS - IX
The Age is negatively very significant (1-5%) for most of the islands (22/36) Every Additional Year 0.3-1.5% decrease of house prices (0.69% decrease - weighted average)Regarding the time distance of the properties to the ports/ airports:Time Distance to Port:For the biggest islands (big distances) the time distance to the port is negatively very significant (1-5%) - the closer to the port, the more expensive - apart from specific cases (eg. Lesvos)For the smallest islands (not very big in size) or the islands that are relatively close to the capital the time distance to the port was not very significant - apart from specific cases (eg. Paros – Milos - Salamina)Time Distance to Airport:For some of the islands the time distance to the airport is positively very significant (1-10%) – the closer to the airport the less expensive - apart from specific cases (eg. Milos) - Probably because of the noise and disturbance.
Slide37RESULTS - X
Ionian IslandsCorfuNegative Significance to the port*** (1%) i.e. the closer the property to the port, themore expensive.Positive Significance to the airport*(10%)i.e. the closer the property to the airport, theless expensive. KefalloniaNegative Significance to the port** (5%) i.e. the closer the property to the port, themore expensive – 3 main portsNo Significance to the airportLefkadaNo Significance – Road Connected IslandZanteNo Significance – Villages are gathered toThe South East part – no big distancesIthakiNo Significance to the port – Small island
Slide38RESULTS - XI
Dodecanese IslandsRhodesNegative Significance to the port*** (1%) i.e. the closer the property to the port, themore expensive.Positive Significance to the airport***(1%)i.e. the closer the property to the airport, theless expensive Kos & KalymnosPositive Significance to the airport**(5%)i.e. the closer the property to the airport, theless expensive – Medium Sizes islands (population &geographical size) with very busy airports (6th and 9th airports of the country) Patmos/ Symi/ Astypalaia/ Karpathos/ LerosNo SignificanceSmaller Islands/ Smaller distances
Slide39RESULTS - XII
Argo Saronic IslandsSalaminaNegative Significance to the port*** (1%) i.e. the closer the property to the port, themore expensive.It is the island closer to Athens (only 15minsby boat) – people live in the island and commute to Athens to work, so very big influence to the house prices because of the Port.Spetses/ YdraNo SignificanceSmall Islands/ small distancesIn these 2 islands cars are not allowed (distances are calculated by car for comparison purposes) – motorbikes are allowed
Slide40RESULTS - XII
Sporades IslandsSkiathos Negative Significance to the port* (10%) i.e. the closer the property to the port, themore expensive.Positive Significance to the airport**(5%)i.e. the closer the property to the airport, theless expensive – Small sample Skopelos & AlonnisosNo Significance to port - Small Islands – Small DistancesSkyrosNo Significance to port/airportSmall island/distances
Slide41RESULTS - XIII
North East Aegean Sea IslandsChiosNegative Significance to the port** (5%) i.e. the closer the property to the port, the more Expensive - No Significance to the airportLesvosNO Significance (???)Compared with Corfu & Rhodes (similar size, population, distance from capital-mainland) Rhodes has the 3rd bigger airport of Greece and Corfu the 5th while Lesvos’s airport is not in the top 10 list. So, people prefer to travel to Lesvosby boat. Corfu is 45’ by boat from the mainland While Lesvos is 13h!!! So, port is not significant either.SamosNo Significance – 2 main ports Limnos & IkariaNo Significance
Slide42RESULTS - XIV
Cyclades Islands- Are ALL relatively close to a main port of AthensNot very big islands (in terms of time distances on the islands) NO Significances Expected to the portsBUTParosPositive Significance to the port***(1%)i.e. the closer the property to the port, the less expensive!!! probably because the port is located in a town called “Paroikia” while there is another much more expensive and cosmopolitan town called “Naousa” which is far away from the port MilosPositive Significance to the port**(5%)i.e. the closer the property to the port, the less expensive! – the capital is not close to the PortNegative Significance to the airport*** (1%) i.e. the closer the property to the airport, the more expensive – the most beautiful beaches and landscapes are at the South side of the island close to the airportSyros/Tinos/Thira/Kea/ Kythnos/ Amorgos/ AndrosNo Significance
Slide43RESULTS – XV – Big Model
Variables/ Models
OLS (1a)OLS (1b)With airportOLS (2)Fixed Effects j (3)Fixed Effects (4a)Fixed Effects (4b)C8.165***(115.74)8.093***(97.97)8.270***(100.19)8.176***(106.91)8.236***(117.34)8.092***(96.68)Log(living_space)0.773***(44.51)0.764***(37.85)0.777***(39.62)0.793***(42.56)0.776***(46.47)0.784***(40.73)Log(land)0.124***(10.93)0.141***(10.54)0.131***(10.00)0.101***(8.02)0.116***(10.45)0.123***(9.62)Pur0.000(0.06)0.0003(1.01)0.000(0.72)-0.000(-0.21)0.000(0.73)0.000(0.29)Floor-0.015**(-2.17)-0.136*(-1.82)-0.000(-0.04)0.001(0.16)-0.001(-0.17)-0.003(-0.39)T2-0.173***(-10.38)-0.187***(-9.59)-0.210***(-10.94)-0.204***(-11.19)-0.207***(-12.74)-0.205***(-10.95)T30.065(1.42)0.865*(1.72)0.088*(1.80)0.830*(1.80)0.043(0.98)0.081*(1.70)Age-0.002***(-8.52)-0.002***(-7.27)-0.003***(-7.86)-0.003***(-8.70)-0.002***(-8.74)-0.002***(*7.62)Time_distance_to_port-0.0047***(-9.31)-0.001(-0.87)-0.002***(-2.88)-0.004***(-4.25)-0.004***(-7.43)-0.004***(-4.38)Time_distance_to_airport--0.005***(-6.12)-0.002***(-2.64)-0.001(-0.97)--0.001(-0.78)Presence of Airport----0.014(0.57)-Presence of Hospital---362***(-11.95)--0.271***(-7.81)-0.189***(-4.85)Presence of University---0.037(-1.26)-0.048(1.27)-0.043(-1.09)Population--0.002***(5.34)--0.000(-0.63)0.002***(3.38)Geographical Size---6.54E-06(-0.23)-0.0001***(4.35)0.0001***(2.92)R20.5630.5890.6130.6590.6050.630Adj. R20.5620.5860.6110.6560.6030.628Observations4,3573,1683,1683,1684,3573,168
log(Pi,j,k)= α + ∑β Xi,j,k + εi,j,k
log(Pi,j,k) = α + ∑β Xi,j,k + ∑γZj,k + εi,j,k
log(P
i,j,k
) = α + ∑β Xi,j,k + δj + εi,j,k
log(P
i,j,k) = α + ∑β Xi,j,k + ∑γZj,k + Δk + εi,j,k
Slide44What’s next?
Improve the Big Model with all the islands included by trying many combinations of island characteristics (
Z
i,j,k
) as well as the Fixed Effects
Specify Splines in the Age and Living Space
and
the time distance
to port/airport
Variables
Interpret the exact effect of every variable on prices
Group the results in different groups and combinations of islands
Slide45Any Questions?
Comments
please
…
T
hank you